Abhishek Jha
FullStackEngineer.
Engineering robust backend architectures and scalable full-stack applications.
Full Stack Developer
Code Samdevx Pvt. Ltd.- ▹Owned end-to-end delivery of full-stack features — from database schema design and REST API development to frontend and deployment.
- ▹Built Node.js/Express APIs with PostgreSQL, implementing validation, error handling middleware, and structured logging.
- ▹Reduced page load times by 35% via query optimization, lazy loading, and caching; shipped in agile sprints with CI/CD.
- ▹Wrote unit and integration tests with Jest, conducted code reviews, and maintained technical documentation.
Full Stack Mobile Developer
DealzUp Technologies- ▹Built vendor-side features including two-factor auth, onboarding flows, and backend-connected authentication.
- ▹Integrated REST APIs with local caching and data sync using React Native CLI, Axios, and Formik.
- ▹Improved app responsiveness by 25% through performance profiling, lazy rendering, and optimized state management.
Freelance React Native Engineer
GARS Technology- ▹Shipped cross-platform mobile features for consumer and provider apps using React Native, serving active users.
- ▹Built reusable custom hooks for API fetching, caching, and error handling, reducing boilerplate across 8+ screens.
- ▹Resolved critical UI rendering bugs and memory leaks, improving crash-free rate by ~15%.
- ▹Contributed to sprint planning, PR reviews, and daily stand-ups in a distributed Agile team.
Lonch
Deploy full-stack apps seamlessly in under 60 seconds. A developer-focused cloud platform with top-tier SEO and analytics.
Dropdesk
An innovative workspace solution focused on modern collaboration. Optimized for super SEO performance and blazing fast load times.
An analysis of the true cost of running AI agents and practical strategies to optimize token consumption without sacrificing performance.
Exploring the limitations of Redis as a primary data store and why its speed shouldn't blind you to its volatility.
Real-Time Architectures with WebSockets
Built a distributed uptime monitoring system using WebSockets for validator aggregation. Learned to manage persistent connections, handle failover gracefully, and drastically reduce latency compared to traditional HTTP polling.
Caching & Rate Limiting at Scale
Optimized API performance for a cloud file sharing platform by integrating Redis caching and robust rate-limiting. Managed to reduce PostgreSQL database load by 40% while securing endpoints against abuse.
Cloud Native Storage Workflows
Implemented secure cloud file storage architecture using AWS S3. Mastered the generation of presigned URLs to handle direct client-to-cloud uploads, bypassing the Node backend entirely to save bandwidth.
Advanced Identity & Session Management
Engineered secure session management workflows leveraging Google OAuth 2.0 and JWTs. Built out a comprehensive Role-Based Access Control (RBAC) system to govern multi-tenant workspace permissions.
Shared Backends for Web & Mobile
Designed a unified REST API layer serving both a Next.js web client and a React Native Expo app simultaneously. Handled shared data models and complex timezone-aware scheduling logic using Prisma ORM.
Mobile Performance Profiling
Improved React Native app responsiveness by 25%. Dove deep into performance profiling, lazy rendering techniques, and optimizing local caching strategies for a seamless cross-platform UX.